Agile Web Development with Rails 7

Foreword to the Rails 7 Edition....11 Preface to the Rails 7 Edition....14 Acknowledgments....16 Introduction....18 Rails Simply Feels Right....19 Rails Is Agile....22 Who This Book Is For....24 How to Read This Book....25 Part I. Getting Started....29 1. Installing Rails....31 Installing on Windows....33 Installing on macOS....38 Installing on Linux....41 Choosing a Rails Version....46 Setting Up Your Development Environment....47 Rails and Databases....52 2. Instant Gratification....56 Creating a New Application....57 Hello, Rails!....61 Linking Pages Together....69 When Things Go Wrong....73 3. The Architecture of Rails Applications....79 Models, Views, and Controllers....80 Rails Model Support....84 Action Pack: The View and Controller....87 4. Introduction to Ruby....91 Ruby Is an Object-Oriented Language....92 Data Types....95 Logic....101 Organizing Structures....105 Marshaling Objects....109 Pulling It All Together....110 Ruby Idioms....112 Part II. Building an Application....116 5. The Depot Application....118 Incremental Development....119 What Depot Does....120 Let’s Code....125 6. Task A: Creating the Application....127 Iteration A1: Creating the Product Maintenance Application....128 Iteration A2: Making Prettier Listings....138 7. Task B: Validation and Unit Testing....149 Iteration B1: Validating!....150 Iteration B2: Unit Testing of Models....155 8. Task C: Catalog Display....171 Iteration C1: Creating the Catalog Listing....172 Iteration C2: Adding a Page Layout....177 Iteration C3: Using a Helper to Format the Price....180 Iteration C4: Functional Testing of Controllers....182 Iteration C5: Caching of Partial Results....186 9. Task D: Cart Creation....192 Iteration D1: Finding a Cart....193 Iteration D2: Connecting Products to Carts....195 Iteration D3: Adding a Button....199 10. Task E: A Smarter Cart....209 Iteration E1: Creating a Smarter Cart....210 Iteration E2: Handling Errors....218 Iteration E3: Finishing the Cart....223 11. Task F: Hotwiring the Storefront....231 Iteration F1: Moving the Cart....233 Iteration F2: Creating a Hotwired Cart....241 Iteration F3: Highlighting Changes....248 Iteration F4: Broadcasting Updates with Action Cable....252 12. Task G: Check Out!....261 Iteration G1: Capturing an Order....262 Iteration G2: Adding Fields Dynamically to a Form....278 Iteration G3: Testing Our JavaScript Functionality....286 13. Task H: Sending Emails and Processing Payments Efficiently....293 Iteration H1: Sending Confirmation Emails....294 Iteration H2: Connecting to a Slow Payment Processor with Active Job....303 14. Task I: Logging In....317 Iteration I1: Adding Users....318 Iteration I2: Authenticating Users....324 Iteration I3: Limiting Access....331 Iteration I4: Adding a Sidebar, More Administration....335 15. Task J: Internationalization....343 Iteration J1: Selecting the Locale....345 Iteration J2: Translating the Storefront....351 Iteration J3: Translating Checkout....360 Iteration J4: Adding a Locale Switcher....369 16. Task K: Receive Emails and Respond with Rich Text....374 Iteration K1: Receiving Support Emails with Action Mailbox....375 Iteration K2: Storing Support Requests from Our Mailbox....383 Iteration K3: Responding with Rich Text....391 17. Task L: Deployment and Production....404 Configuring the Database....407 Managing Secrets....410 Building a Docker Image....412 Getting Up and Running....416 Checking Up on a Deployed Application....418 18. Depot Retrospective....424 Rails Concepts....425 Documenting What We’ve Done....429 Part III. Rails in Depth....431 19. Finding Your Way Around Rails....433 Where Things Go....434 Naming Conventions....444 20. Active Record....451 Defining Your Data....452 Locating and Traversing Records....459 Creating, Reading, Updating, and Deleting (CRUD)....464 Participating in the Monitoring Process....483 Transactions....491 21. Action Dispatch and Action Controller....498 Dispatching Requests to Controllers....500 Processing of Requests....514 Objects and Operations That Span Requests....529 22. Action View....543 Using Templates....544 Generating Forms....547 Processing Forms....551 Uploading Files to Rails Applications....553 Using Helpers....558 Reducing Maintenance with Layouts and Partials....567 23. Migrations....580 Creating and Running Migrations....581 Anatomy of a Migration....585 Managing Tables....591 Advanced Migrations....598 When Migrations Go Bad....600 Schema Manipulation Outside Migrations....602 24. Customizing and Extending Rails....605 Creating a Reusable Web Component....606 Testing with RSpec....608 Creating HTML Templates with Slim....616 Customizing Rails in Other Ways....619 Where to Go from Here....620 Bibliography....624